This backup is taken by CM2. Open the CM2SPD Tool. Select CPU Boot Which supports you mobile phone.Click flash button and Select Pac option. Browse file which's name is (SC77xx_FLASH_CONF.pac) Now click flash button. Plug-in the USB cable to phone to connect it to your PC. The process will be started,Wait for a few minutes“Ok”Notification will be appeared On your Cm2 Tool.Now enjoy. .